This demo page has a Code Module with the following code inside:

<p>© Copyright 2017 <script>new Date().getFullYear()>2017&&document.write("- "+new Date().getFullYear());</script> Company Name – All rights reserved.</p>

Just changed all the 2017 numbers to 2014 to show how it works. Hope you like it! 🙂

Preview: © Copyright 2014 Company Name – All rights reserved.